DK166844B1 - CONSISTOMETS FOR ANALYSIS OF RHEOLOGICAL PHENOMAS - Google Patents

CONSISTOMETS FOR ANALYSIS OF RHEOLOGICAL PHENOMAS Download PDF

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Publication number
DK166844B1
DK166844B1 DK099087A DK99087A DK166844B1 DK 166844 B1 DK166844 B1 DK 166844B1 DK 099087 A DK099087 A DK 099087A DK 99087 A DK99087 A DK 99087A DK 166844 B1 DK166844 B1 DK 166844B1
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container
spindle
consistometer
chamber
pendant
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DK099087A
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Danish (da)
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DK99087D0 (en
DK99087A (en
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Rodolphe Arnstein
Patrick Bisson
Marc Blaquiere
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Total Petroles
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
    • G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane

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  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Description

i DK 166844 B1in DK 166844 B1

Opfindelsen omhandler et konsistometer til analyse af rheologiske fænomener, især for cementklinker og slaggecement, og af den i krav l's indledning angivne art.The invention relates to a consistometer for the analysis of rheological phenomena, especially for cement clinker and slag cement, and of the nature specified in the preamble of claim 1.

5 De konventionelle apparater af denne art er tunge og omfangsrige og kan anvendes i laboratorier, men er u-praktiske til anvendelse i felten.5 The conventional apparatus of this kind are heavy and bulky and can be used in laboratories, but are impractical for use in the field.

Opfindelsen har til formål at afhjælpe denne ulempe under bevarelse af en god målenøjagtighed og at nedbringe 10 varigheden af og dermed omkostningerne til de før og efter selve måleperioden foretagne manipulationer.The invention aims to overcome this disadvantage while maintaining good measurement accuracy and to reduce the duration and thus the cost of the manipulations made before and after the measurement period itself.

Dette opnås ifølge opfindelsen for et konsistometer af den indledningsvis angivne art, der er opbygget som angivet i krav l's kendetegnende del.This is achieved in accordance with the invention for a consistometer of the type specified initially, as defined in the characterizing part of claim 1.

15 Herved undgås alle forbindelser mellem konsistometer-beholderens indre og ydre bortset fra de stationære forbindelser, der muliggør indføringen af et trykfluidum i beholderen og fluidets genudtagning. Herved undgås tætslutningsvanskeligheder og friktionstab som føl-20 ge af en aksels gennemgang tværs igennem en væg, der adskiller et højtryksmiljø fra omgivelserne, og der opnås en forenkling af organerne og operationerne til klargøring af beholderen.In this way, all connections between the inner and outer of the consistometer container are avoided except for the stationary connections which enable the introduction of a pressure fluid into the container and the fluid withdrawal. This avoids tight closure difficulties and frictional losses as a result of the passage of a shaft across a wall separating a high-pressure environment from the surroundings, and a simplification of the means and operations to prepare the container.

De enkelte komponenter og foranstaltninger ved konsisto-25 meteret ifølge opfindelsen kan hensigtsmæssigt udformes som angivet i krav 2-8.The individual components and measures of the concentrate according to the invention may conveniently be designed as set forth in claims 2-8.

Opfindelsen forklares nærmere nedenfor i forbindelse med tegningen, hvor: fig. 1 viser et aksialt snit gennem en udførelsesform 2 DK 166844 B1 for konsistometeret ifølge opfindelsen, fig. 2 er en delvis gennemskåret afbildning fra siden af en beholder for et rheologisk materiale som anvendt i konsistometeret, og 5 fig. 3 er en perspektivisk afbildning af denne beholder.The invention is further explained below in connection with the drawing, in which: FIG. 1 shows an axial section through an embodiment 2 DK 166844 B1 of the inventive consistometer; FIG. 2 is a partially sectioned side view of a container for a rheological material as used in the consistometer; and FIG. 3 is a perspective view of this container.

Som vist på fig. 1 omfatter konsistometeret ifølge opfindelsen et stativ 1, der understøtter en kappe 2 af et umagnetisk materiale, eksempelvis aluminium eller en aluminiumlegering, der indvendigt afgrænser et konsi-10 stometerkammer 3 og rummer en gearmotor 4, der via et torsionsdynamometer 5 driver en rotoraksel 6.As shown in FIG. 1, the consistometer according to the invention comprises a rack 1 which supports a casing 2 of a non-magnetic material, for example aluminum or an aluminum alloy, which defines internally a consistometer chamber 3 and contains a gear motor 4 which drives a rotor shaft 6 via a torsion dynamometer 5.

Kammeret 3 er foroven lukket ved hjælp af en øverste prop 7, der kan indskrues i kappen 2 ved hjælp af aftagelige greb 8.The chamber 3 is closed at the top by means of a top plug 7, which can be screwed into the casing 2 by removable grips 8.

15 Den øverste prop 7 bærer en beholder 9 for det rheolo- giske materiale af en aluminiumlegering, som vist på fig. 2 og 3. Beholderen 9 er udformet som en cylinder, eksempelvis med en inderdiameter på 60 mm, hvis sidevæg er forsynet med udsparinger 10, og hvis øverste 20 longitudinale ende bærer en ydre ring 11, og hvis nederste longitudinale ende er aflukket af en indvendig prop 12. Proppen 12 kan være indskruet i det indre af beholderens 9 sidevæg i et forstærket parti af beholderen.The upper plug 7 carries a container 9 for the rheological material of an aluminum alloy, as shown in FIG. 2 and 3. The container 9 is formed as a cylinder, for example, with an inner diameter of 60 mm, the lateral wall of which is provided with recesses 10 and the upper 20 longitudinal end carries an outer ring 11 and the lower longitudinal end is closed by an inner plug 12. The plug 12 may be screwed into the interior of the side wall of the container 9 in a reinforced portion of the container.

Proppen 12 er ved midten forsynet med en pakring 13 25 for en drejelig aksel. En god centrering af proppen 12 og dermed af pakningen 13 er tilvejebragt ved hjælp af et leje 14 ved bunden af proppens gevind, der indgriber i en tilsvarende udsparing i beholderens 9 væg.The plug 12 is provided at the center with a packing ring 13 25 for a rotatable shaft. A good centering of the plug 12 and thus of the gasket 13 is provided by means of a bearing 14 at the bottom of the plug thread, which engages in a corresponding recess in the wall of the container 9.

En cylindrisk ring 15 af en elastomer med en tykkelse 30 på eksempelvis 2 mm er indsat på beholderens 9 sidevæg 3 DK 166844 B1 til lukning af udsparingerne 10.A cylindrical ring 15 of an elastomer with a thickness 30 of, for example, 2 mm is inserted on the sidewall 3 of the container 9 for closing the recesses 10.

Beholderen 9 er fastgjort til den øverste prop 7 ved hjælp af en hurtigt indskruelig ring 16 som vist på fig. 1. Beholderen 9 rummer en omrører 17, der understøt-5 tes af en drivspindel 18, der går igennem akselpakrin- gen 13 og er forlænget nedadtil ud af beholderen 9, og som ved sin øverste ende hviler på et omdrejnings-leje 19, der er udformet i den øverste prop 7.The container 9 is attached to the upper plug 7 by means of a fast screw-in ring 16 as shown in FIG. 1. The container 9 contains a stirrer 17 which is supported by a drive spindle 18 which passes through the shaft package 13 and is extended downwardly of the container 9 and which at its upper end rests on a rotary bearing 19 which is designed in the upper plug 7.

Kappen 2 er nedadtil forlænget i et centralt vedhæng 10 20. Udenfor og omkring vedhænget 20 er der anbragt en drivende permamagnet 21 drejefast på rotorakselen 6.The sheath 2 is extended downwardly in a central pendant 10 20. Outside and around the pendant 20, a driving permamagnet 21 is pivotally mounted on the rotor shaft 6.

I den indre af vedhænget 20 og ud for den drivende magnet 21 er der anbragt en drevet permamagnet 22 drejefast på en mellemliggende transmissionsaksel 23, der bærer 13 en kobling 24. Vedhænget 20 tjener til understøtning af lejer for de to magneter 21 og 22.In the interior of the pendant 20 and next to the driving magnet 21, a driven permamagnet 22 is pivotally mounted on an intermediate transmission shaft 23 which carries a coupling 24. The pendant 20 serves to support bearings for the two magnets 21 and 22.

Koblingen 24 omfatter et leje 25 til optagelse af spindelens 18 nederste ende. Spindelen 18 har langs siden en lodret rille 26, i hvilken der kan indføres et frem-20 spring 27 på koblingen 24, som af en fjeder trykkes mod det indre af lejet 25. Når spindelens 18 nederste ende indføres i lejet 25, vil fremspringet 27 trænge ind i rillen 26. Herved er der tilvejebragt en automatisk indklinkning ved den simple anbringelse af den 25 øverste prop 7 og den hertil fastgjorte beholder 9.The coupling 24 includes a bearing 25 for receiving the lower end of the spindle 18. The spindle 18 has, along the side, a vertical groove 26 into which a projection 27 can be inserted on the coupling 24 which is pressed by a spring against the interior of the bearing 25. As the lower end of the spindle 18 is inserted into the bearing 25, the projection 27 penetrate into the groove 26. Hereby an automatic latching is provided by the simple application of the upper plug 7 and the container 9 attached thereto.

Der er tilvejebragt en lodret spillerumsudligning til fastholdelse af spindelens 18 øverste ende i omdrejningslejet 19. Til dette formål er koblingen 24 gjort drejefast på den mellemliggende aksel 23 med mulighed 30 for en lodret forskydning, idet en fjeder 28 kompenserer for spindelens længdevariationer.A vertical clearance is provided for retaining the top end of the spindle 18 in the rotary bearing 19. For this purpose, the clutch 24 is pivoted on the intermediate shaft 23 with the possibility 30 of a vertical displacement, a spring 28 compensating for the length variations of the spindle.

4 DK 166844 B14 DK 166844 B1

Et trykfluidum indføres og udtages fra beholderen 3 ved hjælp af ledninger 29 og 30. Opvarmningen sker ved hjælp af en på ydersiden af kappen 2 lejret varmetråd 31. Der kan opnås et tryk på 1 kB og en temperatur på 200 °C.A pressure fluid is introduced and withdrawn from the container 3 by lines 29 and 30. The heating is carried out by means of a heating wire 31 stored on the outside of the jacket 2. A pressure of 1 kB and a temperature of 200 ° C can be obtained.

5 Konsistometeret ifølge opfindelsen anvendes på følgende måde:The consistometer according to the invention is used as follows:

Omrøreren 17 anbringes i beholderen 9, og opbygningen fastgøres på den øverste prop 7 ved indskruning af ringen 16 ved hjælp af en specialnøgle. Membranen 15 ind-10 føres på beholderen 9, idet der efterlades lige store frie rum på hver side af udsparingerne 10, og beholderen fyldes, eksempelvis med cementklinker. Den nederste prop 12 glideforskydes på spindelen 18 under anbringelse af spindelens spids i omdrejningslejet 19, hvorefter den 15 nederste prop 12 fastskrues på beholderen 9 ved hjælp af en specialnøgle. Derefter indføres opbygningen af den øverste prop 7 og den dertil fastgjorte beholder 9 i kon-sistometerkammeret 3. Ved at indskrue den øverste prop 7 på kappen 2 ved hjælp af grebene 8 bringes beholderen 9 20 og spindelen 18, hvis nederste ende kommer i indgreb med koblingen 24, i arbejdsstilling.The agitator 17 is placed in the container 9 and the structure is secured to the upper plug 7 by screwing in the ring 16 by means of a special key. Diaphragm 15 is inserted into container 9, leaving equal free space on each side of recesses 10 and filling the container, for example, with cement clinker. The lower plug 12 is slidably displaced on the spindle 18 by placing the spindle tip in the rotary bearing 19, after which the lower plug 12 is screwed onto the container 9 by means of a special wrench. Then, the structure of the upper plug 7 and the container 9 attached thereto are introduced into the concentrometer chamber 3. By screwing in the upper plug 7 on the sheath 2 by means of the grips 8, the container 9 20 and the spindle 18, the lower end of which engages with the coupling 24, in working position.

Under prøven drives omrøreren 17 med konstant omløbshastighed, eksempelvis 150 0/min. Temperaturen og trykket kan varieres efter et givet program, eksempelvis 25 gældende for cementklinker til et borehul og i overensstemmelse med API standarder.During the test, the stirrer 17 is operated at a constant orbital speed, for example 150 rpm. The temperature and pressure can be varied according to a given program, for example 25 applicable to cement clinker to a borehole and in accordance with API standards.

Man registrerer variationen af det af dynamometeret 5 målte drejningsmoment som funktion af tiden for at bestemme cementens hærdningstid. I stedet for at anvende 30 dynamometeret 5 kan man også måle effekten af motoren 4, men herved bliver cementens konsistensmåling mindre nøjagtig .The variation of the torque measured by the dynamometer 5 as a function of time is recorded to determine the curing time of the cement. Instead of using the dynamometer 5, the power of the motor 4 can also be measured, but this makes the cement's consistency measurement less accurate.

Claims (8)

5 DK 166844 B1 Patentkrav :5 DK 166844 B1 Patent claims: 1. Konsistometer omfattende en i det væsentlige cylindrisk kappe (2) til dannelse af et lodret orienteret, 5 foroven åbent konsistometerkammer (3), en øverste prop (7) indrettet til påskruning på det øverste kappeparti til lukning af kammeret, organer (29, 30) til indføring af et fluidum under tryk i kammeret (3), en langstrakt beholder (9) udformet som et omdrejningslegeme forsynet 10 med lukkeorganer ved dens to langsgående ender, delvis afgrænset af en elastisk membran og indrettet til lodret anbringelse i kammeret (3) og til optagelse af et rheo-logisk foranderligt materiale, en lamelomrører (17) indrettet til anbringelse i beholderen (9) og forsynet 15 med en drivspindel (18), et akselleje (13) i et behol- derbundlukke til tætsluttende gennemgang af spindelen (18), et uden for kappen (2) anbragt drivorgan (4) indrettet til at rotere spindelen (18) samt et måleorgan (5) for spindelens drivende drejningsmoment, k e n -20 detegnet ved, at kappen (2) ved sit nederste parti er udformet med et vedhæng (20), i hvilket der lodret er anbragt en mellemliggende aksel (23) til transmission af rotationsbevægelsen, og som er forsynet med et modtagerorgan (22) for drejningsmomentet, der i et 25 drejningsmomenttransmissionssystem af magnetisk type samvirker med et uden for vedhænget (20) beliggende transmissionsorgan (21) for drejningsmomentet, hvilket organ drives af drivorganet (4) og ved sin øverste ende er mekanisk forbundet med et mekanisk koblings-30 organ (24) således, at spindelens (18) nederste ende indgriber i koblingsorganet ved simpel sænkning af spindelen under anbringelse af beholderen (9) i konsistome-terkammeret (3) og kan frigøres derfra ved en simpel løftning af spindelen ved udtagning af beholderen. 6 DK 166844 B1A consistometer comprising a substantially cylindrical sheath (2) for forming a vertically oriented, 5 open, open consistency chamber (3), an upper plug (7) arranged to screw onto the upper sheath portion for closing the chamber, means (29, 30) for introducing a pressurized fluid into the chamber (3), an elongated container (9) formed as a rotary body 10 with closure means at its two longitudinal ends, partially delimited by an elastic membrane and arranged for vertical placement in the chamber (3). ) and for receiving a rheologically changeable material, a slat stirrer (17) arranged for placement in the container (9) and provided with a drive spindle (18), a shaft bearing (13) in a container bottom closure for tightly sealing the spindle (18), a drive means (4) arranged outside the sheath (2) arranged to rotate the spindle (18) and a measuring means (5) for the driving torque of the spindle, characterized in that the sheath (2) at its bottom a portion is formed with a pendant (20) in which is vertically disposed an intermediate shaft (23) for transmitting the rotational motion, and provided with a torque receiving means (22) which cooperates in a magnetic torque transmission system with a torque transmission means (21) located outside the pendant (20), which means is driven by the driving means (4) and at its upper end is mechanically connected to a mechanical clutch member (24) such that the lower end of the spindle (18) engages the coupling means by simply lowering the spindle while inserting the container (9) into the consistometer chamber (3) and can be released therefrom by a simple lifting of the spindle by removing the container. 6 DK 166844 B1 2. Konsistometer ifølge krav 1, kendetegnet ved, at drejningsmomenttransmissionssystemet af magnetisk type omfatter en drivende permamagnet (21), der er drejefast med drivorganet (4) og monteret på ydersi-5 den af vedhænget (20), og en dreven permamagnet, der er drejefast på den mellemliggende aksel (23) og er monteret i det indre af vedhænget.Consistometer according to claim 1, characterized in that the torque transmission system of the magnetic type comprises a driving permamagnet (21) which is pivotally fixed with the driving means (4) and mounted on the outside of the pendant (20) and a driven permamagnet which is pivotally fixed to the intermediate shaft (23) and is mounted in the interior of the pendant. 3. Konsistometer ifølge krav 1, kendetegnet ved, at der er indsat en fjeder (28) mellem koblings- 10 organet (24) og den mellemliggende aksel (23) til at muliggøre en relativ lodret forskydning, idet koblings-organet (24) og den mellemliggende aksel (23) er indbyrdes drejefaste.Consistometer according to claim 1, characterized in that a spring (28) is inserted between the coupling means (24) and the intermediate shaft (23) to allow a relative vertical displacement, the coupling means (24) and the intermediate shaft (23) is mutually fixed. 4. Konsistometer ifølge krav 1, kendetegnet 15 ved, at koblingsorganet (24) omfatter et lodret leje (25), der er indrettet til optagelse af spindelen (18), og som er udformet med et ud til siden ragende fremspring (27), der er forspændt elastisk imod det indre af lejet (25), og at spindelen (18) ved sin nederste ende er 20 udformet med en lodret rille (26), i hvilken fremspringet (27) kan indgribe.Consistometer according to claim 1, characterized in that the coupling means (24) comprises a vertical bearing (25) arranged for receiving the spindle (18) and which is formed with an outwardly projecting projection (27), which is elastically biased against the interior of the bearing (25) and that the spindle (18) is formed at its lower end by a vertical groove (26) into which the projection (27) can engage. 5. Konsistometer ifølge krav 1, kendetegnet ved, at beholderen (9) ved sit øverste parti omfatter en ydre krave (11), der er indrettet til at fastspæn- 25 des mod den øverste prop (7) til dannelse af beholderens toplukke. 1 Konsistometer ifølge krav 5, kendetegnet ved, at beholderens bundlukke er en nederste prop (12), der er indrettet til påskruning på beholderen. DK 166844 B1 7A consistometer according to claim 1, characterized in that the container (9) comprises at its upper part an outer collar (11) arranged to be clamped against the upper plug (7) to form the top closure of the container. Consistometer according to claim 5, characterized in that the bottom closure of the container is a lower plug (12) adapted for screwing on the container. DK 166844 B1 7 7. Konsistometer ifølge krav 5, kendetegnet ved, at der i den øverste prop (7) er udformet et omdrejningsleje (19) til optagelse af spindelens (18) øverste ende.A consistometer according to claim 5, characterized in that a rotating bearing (19) is provided in the upper plug (7) for receiving the upper end of the spindle (18). 8. Konsistometer ifølge krav 1, kendetegnet 5 ved, at beholderen (9) omfatter sidevendende udsparin ger (10), og at den elastiske membran (15) er en ring, der er indrettet til fastklemning på beholderen til lukning af dennes sidevendende udsparinger.A consistometer according to claim 1, characterized in that the container (9) comprises side-facing recesses (10) and that the elastic membrane (15) is a ring adapted for clamping on the container for closing its lateral recesses.
DK099087A 1986-02-27 1987-02-26 CONSISTOMETS FOR ANALYSIS OF RHEOLOGICAL PHENOMAS DK166844B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8602701 1986-02-27
FR8602701A FR2594950B1 (en) 1986-02-27 1986-02-27 CONSISTOMETER FOR ANALYSIS OF RHEOLOGICAL DEVELOPMENT, ESPECIALLY FOR USE ON A SITE

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DK99087D0 DK99087D0 (en) 1987-02-26
DK99087A DK99087A (en) 1987-08-28
DK166844B1 true DK166844B1 (en) 1993-07-19

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EP (1) EP0236205B1 (en)
JP (1) JP2518638B2 (en)
AU (1) AU587310B2 (en)
BR (1) BR8700899A (en)
CA (1) CA1274988A (en)
DE (1) DE3767509D1 (en)
DK (1) DK166844B1 (en)
FI (1) FI90468C (en)
FR (1) FR2594950B1 (en)
GB (1) GB2187295B (en)
IE (1) IE59838B1 (en)
MX (1) MX169137B (en)
NO (1) NO169362C (en)

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MX169137B (en) 1993-06-23
DK99087D0 (en) 1987-02-26
NO870799D0 (en) 1987-02-26
US4736624A (en) 1988-04-12
AU6918887A (en) 1987-09-03
FI90468C (en) 1994-02-10
CA1274988A (en) 1990-10-09
NO870799L (en) 1987-08-28
AU587310B2 (en) 1989-08-10
IE59838B1 (en) 1994-04-06
FI870836A (en) 1987-08-28
BR8700899A (en) 1987-12-15
EP0236205B1 (en) 1991-01-23
GB8702220D0 (en) 1987-03-11
GB2187295B (en) 1989-11-29
FI90468B (en) 1993-10-29
NO169362C (en) 1992-06-10
GB2187295A (en) 1987-09-03
FR2594950B1 (en) 1988-05-06
NO169362B (en) 1992-03-02
EP0236205A1 (en) 1987-09-09
JP2518638B2 (en) 1996-07-24
DK99087A (en) 1987-08-28
JPS62204142A (en) 1987-09-08
DE3767509D1 (en) 1991-02-28
FR2594950A1 (en) 1987-08-28
FI870836A0 (en) 1987-02-26
IE870483L (en) 1987-08-27

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Date Code Title Description
A0 Application filed
B1 Patent granted (law 1993)
PBP Patent lapsed